Circuit Operation (Charger Unit) - Panasonic KX-TG2361JXB Service Manual

KX-TG2361JXB

20 CIRCUIT OPERATION (CHARGER UNIT)

The voltage from the AC is supplied to the charge circuits. Normal charge (165mA at the Battery) of maximum 6-hours is started
soon after the Handset is placed on the charger unit. Then it changes to Trickle charge (average 10mA at the Battery) to prevent
from overcharging.
Charging form
Q4 detects charging (Handset is placed on the charger unit), then Q5 turns ON and LED1 lights up.
Q2 and Q3 regulate the charge current.
The route for this is as follows: DC+pin of CN1→D1→IC1→R7→D2→CHARGE+pad→Cordless Handset→CHARGE-
pad→Q2→R4 and R9→DC- pin of CN1.
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